Your IGI report, explained.
Every Raul center diamond is graded by IGI, an independent laboratory. The report is your diamond’s record: its shape, size, color, clarity and finish, measured by gemologists with no stake in the sale.
Line by line.
| On the report | What it means |
|---|---|
| Description | “Laboratory grown diamond”: a real diamond, grown rather than mined. |
| Shape and cutting style | The outline and facet pattern, for example princess, oval or round brilliant. |
| Measurements | Length, width and depth in millimeters. This decides how large the stone looks. |
| Carat weight | The diamond’s weight. One carat is 0.2 grams. |
| Color grade | From D (colorless) down the alphabet. D, E and F are the colorless grades. |
| Clarity grade | How clean the stone is under 10x magnification, from FL (flawless) to I. |
| Polish, symmetry, fluorescence | Finish quality and reaction to UV light. Excellent, Excellent, None is the top result. |
| Comments | How the diamond was grown (CVD or HPHT) and its type. |
Check it yourself.
Find the number
It is printed at the top of your IGI report.
Visit igi.org
Open “Verify your report” on the IGI website.
Enter the number
IGI shows the same grading results held in its own records.
- IGI certifiedEvery center diamond, with its original report.
- Free insured shippingSignature required, across the USA.
- 30-day returnsUnworn pieces, prepaid return label.
- Lifetime warrantyOn all manufacturing defects.
- Price match guaranteeOn the same certified diamond.
- Free ring resizingOne resize within 60 days.
About your IGI report.
Does every Raul ring come with an IGI report?
Yes. Every Raul center diamond ships with its original IGI grading report at no extra cost.
Is the sample report my diamond?
No. The sample shows what a report looks like. Your report shows your own diamond’s grades and report number.
What does CVD or HPHT mean?
They are the two methods used to grow diamonds: chemical vapor deposition and high pressure, high temperature. Both produce real diamonds.
What does Type IIa mean?
A classification for diamonds with very few nitrogen atoms. Type IIa diamonds are chemically very pure.
Questions about a specific stone?
Book a free video consultation and we’ll walk you through its report.